The Hertel Spiral Flute Tap is engineered for precision threading applications, specifically designed for 5/8-11 UNC threads. This professional-grade tap features 4 flutes with a bottoming chamfer configuration, making it ideal for creating complete threads at the bottom of blind holes. Crafted from high-speed steel with a protective oxide finish, this tap delivers exceptional durability and wear resistance during demanding operations. The right-hand spiral flute design efficiently evacuates chips upward, preventing clogging and reducing the risk of tap breakage. With a generous 3-13/16" overall length, this tap provides excellent reach and leverage for various tapping operations. The 3B class of fit ensures consistent thread quality that meets industry standards for critical applications. Perfect for manufacturing environments and maintenance settings where thread precision and tool longevity are paramount, this Hertel tap delivers reliable performance across a range of materials.